Mold for concrete walls and arches.



R. T. WALES. MOLD FOR CONCRETE WALLS AND ARCHES.

APPLICATION FILED NOV.25. 1913- Patented Jan. 9, 1917.

UnHIHU/ E J Lmr b 1 1 i INVENTOR Kw By Attorneys,

WN r WITNESSES f i 1. a .1. V

MOLD FOR CONCRETE WALLS AND ARCHES.

Application filed November 25, 1913.

To all whom it may concern:

Be it known that I, ROWLAND T. VVALEs,

a citizen of the United States, residing at' Sewaren, in the county of Middlesex and State of New Jersey, have invented certain new and useful Improvements in Molds for Concrete Walls and Arches, of which the following is a specification.

This invention aims to provide certain im provements in molds for use in building structures of concrete or similar material, or for facing walls and arches, or surrounding columns with such material, which molds are easily removable without injury so that they can be used repeatedly, are comparatively cheaply erected and removed and permit the easy placing of reinforcement in the concrete. The molds are illustrated as constructed chiefly of wood, but it will be understood that metal may be substituted for the wood.

The accompanying drawings illustrate embodiments of the invention.

Figure 1 is a horizontal section of an outside mold in place against a wall. This view can also be considered a vertical section SllOWlIlg a mold for an arch or afioor slab and supporting the concrete from underneath. Fig. 2 is a similar view of a slightly different construction embodying the invention. Fig. 3 is a transverse vertical. section of the mold of Fig. 1; and Fig. 4 is a view similar to Fig. 3 showing a method of eX- tending the length of the support or stud.

This invention is particularly designed to permit the ready removal of the plates or panels K after they have served their pur pose of giving form to the concrete mass, to permit the individual removal of any plate without disturbing its neighbors, and to enable the replacement of any plate after its removal. It is frequently desirable, as is well known in concrete construction, to re move a plate from its support and its neighbors for the purpose of inspection. If upon such inspection it is found necessary to re-' place such plate this present improvement affords means whereby such removal and replacement may be accomplished, and also permits the removal of the plates one by one when it is desired to remove the entire form. One factor which has materially interfered with the ready removal of the plates has been the entrance of the cement from the concrete at the juncture of the end Specification of Letters Patent.

Patented Jan. 9, 1917. Serial No. 802,867.

of a plate and the support or other portion of the structure at that point. The present improvement provides covering strips F located inwardly of the supporting structure and not attached to the face of a support and extending laterally beyond the adjacent ends of the plates K, for preventing the entrance of the cement at the said juncture of the plate ends and the surrounding structure. In the illustration each of the supports for the plates and the covering strip is shown in the form of a stud made up of two wooden parts, there being an inner part A and an outer part B. These parts in the illustration are shown fastened together by bolts C. Spacers D are shown located between the parts at even distances to separate them to afford seats for adjustable plate positioning devices which are hereinafter described. The heads of the bolts C are shown sunk into sockets on the inner face of the part A of the stud. The covering strips F for the plate ends in the present illustration are shown in the nature of flanges of Z-bars G. In the illustration plates K are shown located on both sides of the part A. On this part the Z-bars are so positioned that on the mold side there are flanges F projecting outward laterally of such part and on the outer side the flanges H form a metal backing for the wooden part A. In

the illustration there is shown a space at the side of the part A and the adjacent ends of the plates. The strips F are located in position to prevent the entrance of cement into such space, this being a very important feature as above set forth. Not only is it desirableto have a clearance between the part A and the adjacent ends of the plates K, but it is also desirable that there shall be suiiicient clearance for the plate to be removed in a direction outwardly of the mold past the supporting structure without moving the structure. In the present illustration it will be seen that the plate ends are located laterally of the adjacent side of the support, this being one of the features which permits the individual removal of plates.

Except in the type of mold or form which permits individual removal of plates outwardly between adjacent supports, it is impossible to remove the plates before the whole structure is removed and without a- Waste of lumber or form material. An excessive amount of lumber or form material is also ti'ednp in service.

' provements.disclosed'herein. In the present devices, are shown in the form of clamps for i V clamping the plate ends agamst the flanges The labor of both erection and removal of theform is also excessive. Even the type of mold or form intended to permit individual removal of plates has also required excessive labor and has been impractical because of obstacles which are now eliininated by the new imillustration considered as a horizontal section 1n Figs. 1 and 2, the plate posltiomng of the Z-bars. Their main function, however, so far as thisinvention is concerned, is

to position the-plate relatively to the mold space. For instance, when a support is used in a horizontal POSltlOIlllIldBl' a. ce ling, ust

, as shown in vertical section by Figs. 1 and 2,

these devices support. the plates K above them in the same relative positions under the flanges F and without necessarily cl amping or pressing them "against the flanges. In such a case the flanges F are not necessarily fastened downward to'the support B butwill still lie loosely in the same position 7 on the plates K. If a rough surface suitable for holding plaster is not desired on the I [so concrete, the flanges F may be substituted by a strip over the ends of the plates and'located next the mold space as illustrated by R in Fig. 4. Theplate positioning devices are preferably removable from the supporting structure and are interchangeable and adjustable longitudinally and laterally thereof. In the illustration there is shown a body (portion P in. the nature of a bar adapted to be inserted in the space between the portions 1A and B. .As above stated the outwardly disposed flanges Hof the Z-bars constitute a metal backing for the part A. The part B is also. shown provided with V a facing J.

Between such metal facings H and J the bar port is effected by shifting the position of the bar P in the space between the plates H and J. Adjustment of the device laterally of the support is also effected in a similar manner; In this illustration, the supportengaging portion of the positioning device or the support engaging part of the bar P is adjustable and movable; longitudinally of and within' the supportsffIt' is prevented from swinging inwardly of the mold by the 7 surface of'A facedI-I. This bearing surfaces within the support and'facing out 'wardly of the mold isfavailable throughout the entire length of thesupport except where I covered by the spaces 1). In the case lllLlS.

trated the adjustment of the screw or the plate holding member Q, of the device inwardly and outwardly of the mold is effected by turning it. The plate positioning device illustrated comprises a body portion points for pressing against the support when under load, a plate holding member for resisting outward movement of the plate and disposed laterally of the support carrying said bodyportion and movable relatively to such body portion in a straight path substantially perpendicular to'the face of the mold space, the parts being of such relative proportions that the point of delivery of the outward pressure of the body portion is located nearer to its point of connection with the plate holding member than to the other said point of support engagement.

The juncture on the member P by the plate holding member Q which is carried by P, is disposed laterally of the support B. In this position it permits free adjustment and movement of the plate holding member Q relatively to the above mentioned juncture. This movement is inwardly and outwardly of the mold or approaching and receding from the mold space. In its lateral position, the juncture on P by Q, also permits securely holding Q in anygiven adjustment inwardly or outwardly of the mold and near to the mold space. It also permits of a minimum leverage between the corner of B (which acts as a bearing seat or fulcrum for P) and the above mentioned juncture on P with Q. This minimum leverage on the load side from the fulcrum, gives great power to the plate positioning device and also permits a close compact fit of the device into its given place. The great power also permits using minimum sized positioning devices. Besides many obvious advantages of compact and minimum sized devices, interference longitudinally of the support is reduced between positioning devices which may be disposed on its opposite sides.

In one aspect of the invention the support for the plates is shown in the form of the part B which is fastened in place in some suitable manner, and the'pa'rt A is a filling member intervening between the support B and the mold side and filling the space between the flanges F and providing a wood surface next the concrete which will leave a rough surface on the concrete suit- I able for plastering.

The plates illustrated consist of boards K engaging the support at two separated having wearing strips L bearing against the flanges F of the stud. These strips L thus constitute wearing plates to permit the use of the boards a number of successive'times. They may also be used to connect the successive boards one above another and to assist angles M N in holding in alinementand preventing warping of the boards which are comprised in an individual panel or plate. The end of each board is shown reinforced by a separate angle iron comprising a longitudinally extending wing M adapted to take the wear of the fastening or clamping device hereinafter referred to, and a transversely extending wing N reinforcing the edge of the board, and giving rigidity to the angle M, N and therefore rigidity to the boards which constitute a single panel or plate and which boards are held together by the angles M, N and by the strips L. By using an angle iron M N which is separate from the strip L these metal parts are adapted for use on thinner or thicker boards, as may be required or may be available. Each positioning device is adapted to act upon one or a plurality of boards as the case may be. When each device is intended to act upon a plurality of boards some convenient structure will be inserted between the plate engaging member and the boards as for instance the angle iron M shown in the illustration. This angle iron in the illustration is shown connected to a plurality of plates. I prefer a construction in which the wooden member A and the inner face of the wooden boards K bear directly against the concrete so as to make a rough face on the concrete suitable for plastering. The wooden face on A between the flanges F is also useful for nailing thereto any blocks or strips which may be desired for special uses within the mold space at different levels.

In Fig. 1 the flanges Fare shown with their inner faces flush with the inner face of the support or stud, and the strips L are set in recesses in the ends of the boards K so as to bring the face of the latter exactly flush with the face of the flange F. In Fig. 2 corresponding flanges F project inward slightly beyond the face of the stud, and the strips L are mounted directly on the faces of the boards K. This causes projections of the stud and the metal parts into the face of the concrete slightly beyond the face of the boards. But, practically, the extent of these projections is negligible. If preferred the strips L of the boards K to any desired extent, as for example in the manner shown in Fig. 1, in which case the only substantial projection would be that of the flanges F The support or stud A B may be extended lengthwlse in various ways. A special means for this purpose is illustrated in Fig. I and consists of a pair of platesR, one on each of the transverse faces of the stud, said plates being fastened to the stud by means of bolts S passing through slots T in the plates and through holes such as Sproyided for thepurpose in;the studs, and perm tting the attachment of the plates R at different posi tions. The plates also have openings U located in the plane of the space between the may be set into the faces parts A and B of the support or stud, the openings in the opposite plates registering with each other. The bar P of a clamp may be introduced through the registering openings U of both these plates and operated in the same way as when introduced between, two portions of the support or stud. The inner face of this extension is formed by a plate R of sheet metal extending laterally beyond the plates R to form flanges like F in Fig. l, and lapping over the end of the support or stud A B and projecting to the ends of the plates B. This plate B may be covered with cloth to provide a rough surface of concrete, as above described. For longer extensions of the support or stud a new section comprising the parts A and B and the flanges F may be introduced between the ends of the plates It and fastened between said plates by bolts S. In this case the cover plate R is dispensed with.

While I have described the supports or studs and plates in the positions which they would have in the building of an ordinary wall, yet these terms are used generally in a relative sense. The same constructionwill be used, also, for molding a horizontal or other surface of a concrete structure, as in building arches, floors or slabs generally, in which case the working faces of the supports or studs and of the plates will take positions corresponding to the faces of the structure to be molded.

The supports or studs can be secured in position by any usual or suitable method for securing such structures. The positioning devices are adapted to hold a. plate end in position relative to its respective support and are adapted to release the plate end from said position and permit removal of the plate fromthe mold without the necessity of moving the said support and without the plate gouging into the concrete within the mold space. A plate may likewise be removed without releasing an- 1 other plate located on the opposite side of the same support. Such a construction permits an early release of the plates for repeated use at other points between the supports, or in other parts of the work, and a consequent economy of lumber or form material. act to hold up green or partially hardened concrete after the plates have been removed.

VV-here the parts are made of metal or are faced with metal a rough surface suitable for plastering may be secured by covering the working faces of the mold with cloth or other rough material.

. Although I have described with great particularity of detail certain specific embodiments of my invention, yet it is not to be understood therefrom that the invention is restricted to the particular embodiment disclosed. Various modifications may "be,-

The supports will even made by those skilled in the art in details and'in" the arrangement of the parts without departingfrom the invention. a

I claim as my invention V 1. A mold for concrete construction com- "prising series of supports, plates disposed at "the face of the mold space and devices for holding the plates against movement 7 outwardly of the mold, each .ofsaid devices comprising a'bar part of which is disposed through an opening in the support side which is nearest: a plate end held by said dev1ce,;and a member carried'by said bar, said member'belng adjustable relatlvely-to the bar and toward and'from the mold space into different selected positions at different distances ;-fromthe mold space.

2. A; mold for concrete construction comprising a series of supports each support being formed of two parts, one of such parts 'Vbeing; located ad acent the 'mold space and the other outwardlythereof, there beinga "ing member carried thereby; and movable toward and from the moldspace.

3. A mold for. concrete construction coinprising a series of supports each support be ing formed of two parts one of such parts 7 being located adjacentthe mold space and the other outwardly thereof, there being a space between the said parts, plates disposed between the supports, and positioning deprising a series of supports each support being-formed of two parts one of such parts being located ad acent the mold space and vices for holding the plates against movement outwardly of the mold each comprising a bar disposed in the said space and movable longitudinally of the support, and a plate holding member carried thereby and movable toward and from the mold space.

4; A mold for. concrete construction comthe other outwardly thereof,'there being a space between the said parts, flanges located Vadjacentfthe mold space, plates engaging the flanges, and positioning devices for holda ing a plate against the flanges each comprising a 'bar disposed in the'said space and I movable longitudinally of the support. and

a plate holdingjmember carried thereby and movfible olatively thereto toward and fr the moldJspace r v.

7 5.;A;mold for concrete construction comprising a series of supports, each support being formed of two parts, one, of such parts being located. ad acent the; mold space and j the; other outwardlywthereof,'a'lateral side of the innerpart of'a support constituting a sheet metal wing'common to two sheet metal angles, and from which wing the other wings diverge, one of the latter of said wings projecting laterally fron such part and being located adjacent the mold space, and the other wing being located rearwardly of such part, spacing members between the support part-sand engaging the front face of the rear part and the rear face of the last said wing, means for fastening the structure together, and plates between said supports and overlapping the said laterally projecting wings. p

6. A mold for concrete construction comprising a series of supports, each support be ing formed of two parts, one of such parts being located adjacent the mold space and the other outwardly thereof', a lateral side sheet metal wing common to two sheet metal angles, and from which wing the other wings diverge, one of the latter of said wings'projecting laterally from such part and being located adjacent the mold space, and the other wing being located rearwardly of such part, spacing members between the support parts and engaging the front face of the rear part and the rear face of the last. said -wing, means for fastening the structure together, plates between said'supports and overlapping the said laterally projecting wings and positioning devices for holding the plates against the last said wings each comprising a bar disposed in the s imcebetween the support parts and a plate holding member carried thereby and movable relatively thereto.

7. A mold for concrete, comprising a series of supports, plates at the face of the mold space, and a plurality of plate positioning devices carried by each support, each such plate positioning device having a body portion for pressing against the support at separated points simultaneously and in different directions when under load and a plate holding member for resisting outward movementof the plate and disposed laterally of the support carrying the body portion and movable relatively to the body porof the inner part of a support constituting a j tion in a straight path substantially perpendicular to the face of the mold space, the parts being of such relative proportions that the point of delivery of outward pressure of the body portion against the support is located nearer to the point of connection of said portion with the plate holding member than to the other said point of pressure of said portion against the support.

' 8. A mold for concrete comprising plates, a series off-supports, and a plurality of plate positioning devices carried by each support for holding the plates adjacent the mold space, said positioning devices being capable .,of interchangeable distribution longitudinally of the support, and each such device having a body portion for pressing against the supportand a screw carried by the body portion and movable relatively to said body portion toward and from the mold space.

9. A mold for concrete comprising plates, a series of supports, and a plurality of plate positioning devices carried by each support for holding the plates adjacent the mold space, said positioning devices being capable of interchangeable distribution longitudinally of the support, each such device comprising a body portion, part of which is disposed through an opening in the support side extending transversely of the mold, and comprising a member connected to the said body portion at a point located laterally" of the said support side, said member being movable relatively to said point of connection with said body portion and in a straight path substantially perpendicular to the face of the mold space.

10. A mold for concrete comprising plates, a series of supports,

and a plurality of plate positioning devices carried by each support for holding the plates adjacent the mold space, said positioning devices being capable of interchangeable distribution longitudinally of the support, each such device comprising a body portion part of which is disposed through an opening in the support Copies of this patent may be obtained for five cents each, by addressing the side extending transversely of the mold, the

support having within it a surface facing outwardly of the mold, and disposed substantially outwardly of the ,mold space, and extending longitudinally of the support, and preventing the inserted end of said body portion swinging inwardly of the mold.

11. A mold for concrete comprising a series of supports each having laterally disposed flanges adjacent the mold space, plates disposed against the flanges, and a plurality of devices capable of interchangeable distribution longitudinally of the support for holding the plates against the flanges, and each such device comprising a body portion a part thereof being disposed through an opening in the support side extending transversely of the mold, and a screw carried by said body portion and movable relatively to said body portion toward and from the mold space.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses. ROWLAND T. WALES. Witnesses:

D. ANTHONY USINA, CHAS. LYON RUSSELL.

Commissioner of Patents,

Washington, D. C. 

